GB1476129A - Dc pulse control circuits including a fault detector - Google Patents

Dc pulse control circuits including a fault detector

Info

Publication number
GB1476129A
GB1476129A GB3943574A GB3943574A GB1476129A GB 1476129 A GB1476129 A GB 1476129A GB 3943574 A GB3943574 A GB 3943574A GB 3943574 A GB3943574 A GB 3943574A GB 1476129 A GB1476129 A GB 1476129A
Authority
GB
United Kingdom
Prior art keywords
transistor
signal
scr16
flip
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3943574A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB1476129A publication Critical patent/GB1476129A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/0833—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements
    • H02H7/0844—Fail safe control, e.g. by comparing control signal and controlled current, isolating motor on commutation error
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/003—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to inverters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0092—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption with use of redundant elements for safety purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04—Cutting off the power supply under fault conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/0833—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements
    • H02H7/0838—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements with H-bridge circuit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Direct Current Motors (AREA)
  • Dc-Dc Converters (AREA)

Abstract

1476129 Motor control protective systems GENERAL ELECTRIC CO 10 Sept 1974 [17 Sept 1973] 39435/74 Heading H2K [Also in Division H3] A D.C. pulse control motor drive circuit including a repeatedly operated power averaging switch has a fault detector with sensing means Q1, 40, 51 connected across the switch 16, 17 and arranged to produce a fault signal if the switch 16, 17 remains conductive beyond a predetermined period of time, and with reset means 26 set for a predetermined number of operations. A gating control 18 normally apportions conductive to non-conductive intervals to an SCR16 for controlling the time arranged voltage across a motor having an armature 10 and winding 12. During the non- conductive periods of 16 the voltage at the base of a transistor Q1 makes it conduct and capacitor 51 is charged so that within the time period set by 40 and 51 the output signal to terminal CL of a flip-flop 22 is maintained whilst the transistor Q1 is nonconductive as SCR16 conducts. If SCR16 fails and continues to conduct the capacitor 51 will continue to discharge and the signal to terminal CL of flip-flop 22 will effectively cease so that the output to an inverter is changed from a logic 0 to a logic 1 and a transistor Q2 ceases to conduct. The transistor Q2 is in series with a selected one of a pair of contactors F, F 1 , F 2 , and R, R 1 , R 2 having their contacts in the motor circuit. An electromechanical bypass contactor has its contacts 17 connected across the SCR16 and is arranged so that when it is energized a biasing voltage is applied to a terminal 21 to maintain Q1 in a conducting state. A fault signal (a logic 1) at the output of the flip-flop 22 is also fed to a time log circuit 60, 61 and connected by an inverter 62 to a logic D which is applied to S terminals flip/flops 22, 26 allowing the former to reset if the 0 signal at its input CL has disappeared and setting the output of the latter so that a further signal to the circuit of 60, 61 does not provide a second resetting action. On motor starting closure of a switch a S1 forward-backward selector 59 for contactor coils 57, 58 is in a neutral position so that neither contacts F1, F 2 or R 1 R 2 are closed but voltage is applied via resistor 42 to the SCR16 and, provided this is not short circuited, the voltage at the base of transistor Q will allow conduction to change capacitor until a signal at CL of flip-flop 22 results in conduction by transistor Q 2 whereby operation of switch 59 can energise either the forward or reversing contactor (F, F 1 , F 2 or R, R 1 , R 2 ).
GB3943574A 1973-09-17 1974-09-10 Dc pulse control circuits including a fault detector Expired GB1476129A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US397984A US3914675A (en) 1973-09-17 1973-09-17 Fault detector circuit for electric vehicle control

Publications (1)

Publication Number Publication Date
GB1476129A true GB1476129A (en) 1977-06-10

Family

ID=23573502

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3943574A Expired GB1476129A (en) 1973-09-17 1974-09-10 Dc pulse control circuits including a fault detector

Country Status (7)

Country Link
US (1) US3914675A (en)
JP (1) JPS50154725A (en)
BG (1) BG38490A3 (en)
DE (1) DE2443339C2 (en)
FR (1) FR2244282B1 (en)
GB (1) GB1476129A (en)
IT (1) IT1027565B (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS515518A (en) * 1974-07-05 1976-01-17 Hitachi Ltd
JPS5191528A (en) * 1975-02-06 1976-08-11
US4200832A (en) * 1975-04-10 1980-04-29 General Electric Company Overload detecting scheme for an electric propulsion system for traction vehicles
US4017775A (en) * 1975-10-28 1977-04-12 Cleveland Machine Controls, Inc. Fault detector circuit with two-fault memory
CA1081316A (en) * 1976-11-12 1980-07-08 Canadian General Electric Company Limited Power control of a stalling motor
US4093901A (en) * 1977-05-25 1978-06-06 Rose Ronald N DC Motor speed control circuit
DE2736304C3 (en) * 1977-08-12 1980-07-10 Robert Bosch Gmbh, 7000 Stuttgart Safety circuit for an electric motor fed by a battery
US4150326A (en) * 1977-09-19 1979-04-17 Unimation, Inc. Trajectory correlation and error detection method and apparatus
DE2934898A1 (en) * 1978-02-09 1981-01-08 Caterpillar Tractor Co Modular heat exchanger with resilient mounting and sealing element
US4447767A (en) * 1981-03-31 1984-05-08 John J. Barni SCR Motor speed control
US4454503A (en) * 1981-09-03 1984-06-12 General Electric Company Transistor fault indicator
DE3135888A1 (en) * 1981-09-10 1983-03-24 Robert Bosch Gmbh, 7000 Stuttgart SAFETY DEVICE FOR AN ELECTRICAL ACTUATOR
US4449080A (en) * 1982-05-27 1984-05-15 General Electric Company Electric vehicle protection scheme
GB2125642B (en) * 1982-08-06 1985-10-02 Philips Electronic Associated Washing machine motor speed control circuit
US4719555A (en) * 1985-12-19 1988-01-12 Hitachi, Ltd. Electric power control apparatus with first and second fixed time intervals
JPH0275901U (en) * 1988-11-25 1990-06-11
JP2553026Y2 (en) * 1989-04-18 1997-11-05 株式会社豊田自動織機製作所 Protective equipment
SE467130B (en) * 1990-09-14 1992-05-25 Electrolux Ab POWER SUPPLY FOR GENERATION OF A PRINCIPLY SINUS SHAPED RISK
DE4416008B4 (en) * 1994-05-06 2005-02-10 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Vehicle equipped with a control system
WO2004100336A1 (en) * 2003-05-02 2004-11-18 Abb Inc. Intelligence automatic bypass for a motor control device fault

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349309A (en) * 1964-12-04 1967-10-24 Yale & Towne Inc Industrial truck power circuit
US3283236A (en) * 1965-09-30 1966-11-01 Borg Warner Control system for power units such as electric motors and the like
US3363160A (en) * 1965-11-05 1968-01-09 Gen Electric Motor control fail safe circuitry
DE1265835B (en) * 1965-11-05 1968-04-11 Gen Electric Circuit for monitoring the conduction duration of a thyristor which supplies the armature of a direct current motor in pulses from a current source
JPS4524809Y1 (en) * 1967-03-06 1970-09-29
US3544845A (en) * 1967-11-06 1970-12-01 Harman Kardon Inc Overload protection circuit for transistors
GB1251722A (en) * 1969-02-28 1971-10-27
US3643151A (en) * 1969-09-17 1972-02-15 Matsushita Electric Ind Co Ltd Overcurrent proof constant voltage
US3602771A (en) * 1969-10-13 1971-08-31 Furnas Electric Co Solid state de-energizer having current sensing loops
DE2111182A1 (en) * 1970-03-09 1971-10-07 Meidensha Electric Mfg Co Ltd Actuation and control arrangement for electrically powered vehicles
US3660718A (en) * 1970-06-08 1972-05-02 Honeywell Inc Automatically resetting motor protection circuit responsive to overcurrent and overtemperature

Also Published As

Publication number Publication date
IT1027565B (en) 1978-12-20
JPS50154725A (en) 1975-12-13
FR2244282B1 (en) 1981-08-21
BG38490A3 (en) 1985-12-16
US3914675A (en) 1975-10-21
FR2244282A1 (en) 1975-04-11
DE2443339A1 (en) 1975-03-20
DE2443339C2 (en) 1984-06-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19940909